Boom microphone



FIG. 1 is a front, left, perspective view of a boom microphone installed on an exemplar personal audio set showing our new design;

FIG. 2 is a left, elevation view thereof;

FIG. 3 is a front, elevation view thereof;

FIG. 4 is a back, elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front, right, perspective view of the boom microphone of FIG. 1 showing the unclaimed exemplar personal audio set adjacent to a wearer's right ear.

The broken line showing an exemplar personal audio set with related head mounting structure and distal end of the boom microphone are for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for a boom microphone, as shown and described. 